ATP 250 · 2021-06-07 · draw of 28
Stuttgart 2021
GrassFinal
| 🇭🇷 Marin Cilic | d. | 🇨🇦 Felix Auger-Aliassime | 7-6(2) 6-3 | H2H |
Semifinals
| 🇭🇷 Marin Cilic | d. | 🇦🇹 Jurij Rodionov | 6-3 1-0 RET | H2H |
| 🇨🇦 Felix Auger-Aliassime | d. | 🇺🇸 Sam Querrey | 6-4 7-5 | H2H |
Quarterfinals
| 🇺🇸 Sam Querrey | d. | 🇨🇭 Dominic Stricker | 6-7(4) 7-6(4) 6-3 | H2H |
| 🇦🇹 Jurij Rodionov | d. | 🇦🇺 Alex de Minaur | 3-6 6-3 7-6(4) | H2H |
| 🇨🇦 Felix Auger-Aliassime | d. | 🇫🇷 Ugo Humbert | 7-6(5) 7-6(8) | H2H |
| 🇭🇷 Marin Cilic | d. | 🇨🇦 Denis Shapovalov | 7-5 7-6(3) | H2H |
Round of 16
| 🇦🇹 Jurij Rodionov | d. | 🇩🇪 Peter Gojowczyk | 5-3 RET | H2H |
| 🇺🇸 Sam Querrey | d. | 🇦🇺 James Duckworth | 6-4 7-6(7) | H2H |
| 🇫🇷 Ugo Humbert | d. | 🇩🇪 Yannick Hanfmann | 7-6(9) 6-2 | H2H |
| 🇭🇷 Marin Cilic | d. | 🇬🇪 Nikoloz Basilashvili | 6-3 6-2 | H2H |
| 🇦🇺 Alex de Minaur | d. | 🇦🇺 Jordan Thompson | 6-7(8) 6-3 6-4 | H2H |
| 🇨🇦 Felix Auger-Aliassime | d. | 🇿🇦 Lloyd Harris | 6-3 7-6(4) | H2H |
| 🇨🇭 Dominic Stricker | d. | 🇵🇱 Hubert Hurkacz | 7-6(5) 7-6(5) | H2H |
| 🇨🇦 Denis Shapovalov | d. | 🇪🇸 Feliciano Lopez | 6-2 6-7(2) 6-3 | H2H |
Round of 32
| 🇩🇪 Peter Gojowczyk | d. | 🇧🇾 Ilya Ivashka | 5-7 6-4 6-2 | H2H |
| 🇦🇺 Jordan Thompson | d. | 🇦🇷 Guido Pella | 6-3 6-4 | H2H |
| 🇨🇭 Dominic Stricker | d. | 🇲🇩 Radu Albot | 7-6(4) 7-6(5) | H2H |
| 🇦🇹 Jurij Rodionov | d. | 🇩🇪 Dominik Koepfer | 2-6 6-3 6-2 | H2H |
| 🇺🇸 Sam Querrey | d. | 🇹🇷 Altug Celikbilek | 6-4 6-1 | H2H |
| 🇪🇸 Feliciano Lopez | d. | 🇦🇺 Alexei Popyrin | 6-4 6-4 | H2H |
| 🇿🇦 Lloyd Harris | d. | 🇫🇷 Gilles Simon | 6-4 7-5 | H2H |
| 🇩🇪 Yannick Hanfmann | d. | 🇫🇷 Jeremy Chardy | 6-4 6-4 | H2H |
| 🇩🇪 Peter Gojowczyk | d. | 🇧🇾 Ilya Ivashka | 5-7 6-4 6-2 | H2H |
| 🇭🇷 Marin Cilic | d. | 🇩🇪 Rudolf Molleker | 7-5 6-3 | H2H |
| 🇦🇺 James Duckworth | d. | 🇫🇷 Adrian Mannarino | 6-3 6-2 | H2H |
| 🇫🇷 Ugo Humbert | d. | 🇭🇺 Marton Fucsovics | 6-3 6-1 | H2H |
| 🇬🇪 Nikoloz Basilashvili | d. | Dustin Brown | 6-3 7-6(4) | H2H |